5 



T 



This species is readily distinguished from Panicnm pauciflormn Ell,, and P. 

 scribnenaniim Nash, to which it is most closely related, by its much broader 

 pubescent leaves and larger spikelets. Of the specimens cited above, S. M, 

 Bain, 1893; Steele, 1899; 2994a Biltmore Herbarium, and the specimens from 

 Ravenel have been carefully compared with Elliott's type. 



Panicum pauciflorum Ell. Sk. 1 : 120. A distinct species, related to Panicum 

 scribnerianuni Nash. The same as the specimen in the Herbarium of 

 Columbia University, so labeled by Elliott = Panicum oUgosanthes Schultes. 



Panicum virgatum Linn. ; Ell. Sk. 1 : 120. 



Panicum amarum Ell. Sk 1 : 131. The specimen In the Herbarium of Elliott 

 under this name is a robust 

 form of Panicum virgahtm 

 Linn. From Elliott's descrip- 

 tion, however, it is very evident 

 what plant he had in mind. The 

 true Panictim amariim Ell., is 

 represented by the following 

 specimens in the U. S. National 

 Herbarium. Virginia: Ocean 

 View, Geo. Vasey, August 5, 

 1890; Virginia Beach 3063, 2064 



Kearney 



Williams 



tember34, 1900. Florida: Key 

 Largo, A. H. Curtiss, November 

 7,1894; Lake Worth Inlet, 5527, 

 A. H. Curtiss, September 8, 

 1895; Indian River, 3578 Cur- 

 tiss ; Cape Malabar, Curtiss, 

 September, 1879. The small 

 form which was called Panicum 

 aviaritm minor Vasey & Scribn. 

 U. S. Dept. Agr. Div. Bot. Bui. 

 8:38. 1889, is here proposed as 

 the following species. 



NICUMAMAROIDESScribn. 



i 



& Merrill sp. nov. {Panicum 



amanim minorV^sey & Scribn. 



U. S. Dept. Agr. Div. Bot. Bui. 



8:38. 1889, not P capillare 



minor Muhh 1817.) (Pig. 1.) A 



glabrous, glaucous, non-caespi- 



tose perennial, 3 to 8 dm. high 



from horizontal root-stocks, 



with thick, often involute 



leaves and narrow, contracted 



panicles. Culms erect, or ascending, often somewhat branched below, stout, 



the lower intemodes very short; nodes smooth: sheaths loose, rfabrous 



Fig. 1.— Panicum amaroides Scribn. *S: Merrill, a, 

 sliows habit of the plant; c, a spikelet somewhat 

 enlarged; d, the perfect floret showing the flower- 

 ing glume, palea. stamens, and stigmas; e, ante- 

 rior view of the same with the palea closed; 7^, a 

 portion of nanicle of P. aYnariun EU. 



and 



smooth 



wide 



lute at least above. Panicles 1 to 2.5 dm. long, few flowered, narrow, the 

 branches appressed 1 to 7 cm. long. Spikelets glabrous ovate acuminate 5 

 to 6 mm. long ; first glume clasping the base of the spikelet, stronsrlv nerved 



